Mac: test adjustable number of channels.
This commit is contained in:
Phil Burk
parent
110043f842
commit
315309f60e
5 changed files with 74 additions and 74 deletions
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@ -49,56 +49,40 @@
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#include "portaudio.h"
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/* #define SAMPLE_RATE (17932) // Test failure to open with this value. */
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#define SAMPLE_RATE (44100)
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#define FRAMES_PER_BUFFER (1024)
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#define NUM_CHANNELS (6)
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#define NUM_SECONDS (15)
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#define SAMPLE_RATE (44100)
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#define FRAMES_PER_BUFFER (512)
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#define NUM_SECONDS (10)
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/* #define DITHER_FLAG (paDitherOff) */
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#define DITHER_FLAG (0) /**/
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/* @todo Underflow and overflow is disabled until we fix priming of blocking write. */
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#define CHECK_OVERFLOW (0)
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#define CHECK_UNDERFLOW (0)
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#define DITHER_FLAG (0)
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/* Select sample format. */
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#if 0
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#if 1
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#define PA_SAMPLE_TYPE paFloat32
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#define SAMPLE_SIZE (4)
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#define SAMPLE_SILENCE (0.0f)
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#define CLEAR(a) memset( (a), 0, FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
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#define PRINTF_S_FORMAT "%.8f"
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#elif 0
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#define PA_SAMPLE_TYPE paInt16
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#define SAMPLE_SIZE (2)
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#define SAMPLE_SILENCE (0)
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#define CLEAR(a) memset( (a), 0, FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
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#define PRINTF_S_FORMAT "%d"
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#elif 1
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#elif 0
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#define PA_SAMPLE_TYPE paInt24
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#define SAMPLE_SIZE (3)
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#define SAMPLE_SILENCE (0)
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#define CLEAR(a) memset( (a), 0, FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
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#define PRINTF_S_FORMAT "%d"
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#elif 0
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#define PA_SAMPLE_TYPE paInt8
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#define SAMPLE_SIZE (1)
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#define SAMPLE_SILENCE (0)
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#define CLEAR(a) memset( (a), 0, FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE )
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#define PRINTF_S_FORMAT "%d"
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#else
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#define PA_SAMPLE_TYPE paUInt8
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#define SAMPLE_SIZE (1)
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#define SAMPLE_SILENCE (128)
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#define CLEAR( a ) { \
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int i; \
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for( i=0; i<FRAMES_PER_BUFFER*NUM_CHANNELS; i++ ) \
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((unsigned char *)a)[i] = (SAMPLE_SILENCE); \
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}
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#define PRINTF_S_FORMAT "%d"
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#endif
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/*******************************************************************/
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int main(void);
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int main(void)
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@ -106,46 +90,50 @@ int main(void)
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PaStreamParameters inputParameters, outputParameters;
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PaStream *stream = NULL;
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PaError err;
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char *sampleBlock;
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const PaDeviceInfo* inputInfo;
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const PaDeviceInfo* outputInfo;
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char *sampleBlock = NULL;
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int i;
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int numBytes;
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printf("patest_read_write_wire.c\n"); fflush(stdout);
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numBytes = FRAMES_PER_BUFFER * NUM_CHANNELS * SAMPLE_SIZE ;
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sampleBlock = (char *) malloc( numBytes );
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if( sampleBlock == NULL )
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{
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printf("Could not allocate record array.\n");
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exit(1);
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}
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CLEAR( sampleBlock );
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printf("sizeof(int) = %lu\n", sizeof(int)); fflush(stdout);
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printf("sizeof(long) = %lu\n", sizeof(long)); fflush(stdout);
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err = Pa_Initialize();
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if( err != paNoError ) goto error;
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if( err != paNoError ) goto error2;
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inputParameters.device = Pa_GetDefaultInputDevice(); /* default input device */
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printf( "Input device # %d.\n", inputParameters.device );
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printf( "Input LL: %g s\n", Pa_GetDeviceInfo( inputParameters.device )->defaultLowInputLatency );
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printf( "Input HL: %g s\n", Pa_GetDeviceInfo( inputParameters.device )->defaultHighInputLatency );
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inputParameters.channelCount = NUM_CHANNELS;
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inputParameters.sampleFormat = PA_SAMPLE_TYPE;
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inputParameters.suggestedLatency = Pa_GetDeviceInfo( inputParameters.device )->defaultHighInputLatency ;
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inputParameters.hostApiSpecificStreamInfo = NULL;
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inputInfo = Pa_GetDeviceInfo( inputParameters.device );
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printf( " Name: %s\n", inputInfo->name );
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printf( " LL: %g s\n", inputInfo->defaultLowInputLatency );
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printf( " HL: %g s\n", inputInfo->defaultHighInputLatency );
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outputParameters.device = Pa_GetDefaultOutputDevice(); /* default output device */
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printf( "Output device # %d.\n", outputParameters.device );
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printf( "Output LL: %g s\n", Pa_GetDeviceInfo( outputParameters.device )->defaultLowOutputLatency );
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printf( "Output HL: %g s\n", Pa_GetDeviceInfo( outputParameters.device )->defaultHighOutputLatency );
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outputParameters.channelCount = NUM_CHANNELS;
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outputInfo = Pa_GetDeviceInfo( outputParameters.device );
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printf( " Name: %s\n", outputInfo->name );
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printf( " LL: %g s\n", outputInfo->defaultLowOutputLatency );
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printf( " HL: %g s\n", outputInfo->defaultHighOutputLatency );
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int numChannels = inputInfo->maxInputChannels < outputInfo->maxOutputChannels
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? inputInfo->maxInputChannels : outputInfo->maxOutputChannels;
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printf( "Num channels = %d.\n", numChannels );
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inputParameters.channelCount = numChannels;
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inputParameters.sampleFormat = PA_SAMPLE_TYPE;
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inputParameters.suggestedLatency = inputInfo->defaultHighInputLatency ;
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inputParameters.hostApiSpecificStreamInfo = NULL;
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outputParameters.channelCount = numChannels;
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outputParameters.sampleFormat = PA_SAMPLE_TYPE;
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outputParameters.suggestedLatency = Pa_GetDeviceInfo( outputParameters.device )->defaultHighOutputLatency;
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outputParameters.suggestedLatency = outputInfo->defaultHighOutputLatency;
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outputParameters.hostApiSpecificStreamInfo = NULL;
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/* -- setup -- */
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err = Pa_OpenStream(
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err = Pa_OpenStream(
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&stream,
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&inputParameters,
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&outputParameters,
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@ -154,21 +142,33 @@ int main(void)
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paClipOff, /* we won't output out of range samples so don't bother clipping them */
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NULL, /* no callback, use blocking API */
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NULL ); /* no callback, so no callback userData */
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if( err != paNoError ) goto error;
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if( err != paNoError ) goto error2;
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numBytes = FRAMES_PER_BUFFER * numChannels * SAMPLE_SIZE ;
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sampleBlock = (char *) malloc( numBytes );
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if( sampleBlock == NULL )
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{
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printf("Could not allocate record array.\n");
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goto error1;
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}
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memset( sampleBlock, SAMPLE_SILENCE, numBytes );
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err = Pa_StartStream( stream );
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if( err != paNoError ) goto error;
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if( err != paNoError ) goto error1;
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printf("Wire on. Will run %d seconds.\n", NUM_SECONDS); fflush(stdout);
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for( i=0; i<(NUM_SECONDS*SAMPLE_RATE)/FRAMES_PER_BUFFER; ++i )
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{
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err = Pa_WriteStream( stream, sampleBlock, FRAMES_PER_BUFFER );
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if( err && CHECK_UNDERFLOW ) goto xrun;
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err = Pa_ReadStream( stream, sampleBlock, FRAMES_PER_BUFFER );
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if( err && CHECK_OVERFLOW ) goto xrun;
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// You may get underruns or overruns if the output is not primed by PortAudio.
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err = Pa_WriteStream( stream, sampleBlock, FRAMES_PER_BUFFER );
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if( err ) goto xrun;
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err = Pa_ReadStream( stream, sampleBlock, FRAMES_PER_BUFFER );
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if( err ) goto xrun;
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}
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printf("Wire off.\n"); fflush(stdout);
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err = Pa_StopStream( stream );
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if( err != paNoError ) goto error;
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if( err != paNoError ) goto error1;
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free( sampleBlock );
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@ -176,6 +176,7 @@ int main(void)
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return 0;
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xrun:
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printf("err = %d\n", err); fflush(stdout);
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if( stream ) {
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Pa_AbortStream( stream );
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Pa_CloseStream( stream );
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@ -187,13 +188,13 @@ xrun:
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if( err & paOutputUnderflow )
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fprintf( stderr, "Output Underflow.\n" );
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return -2;
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error:
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error1:
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free( sampleBlock );
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error2:
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if( stream ) {
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Pa_AbortStream( stream );
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Pa_CloseStream( stream );
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}
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free( sampleBlock );
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Pa_Terminate();
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fprintf( stderr, "An error occured while using the portaudio stream\n" );
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fprintf( stderr, "Error number: %d\n", err );
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